by ROSALIND RYAN, femail.co.uk
Your mother’s advice that carrots can help you see in the dark may have been more than a ploy to get you to eat vegetables.Research has now proved that eating certain foods can improve your eyesight, reverse the signs of optical ageing and keep your eyes in good health.
One of the most common causes of poor sight is a condition called macular degeneration. This condition accounts for 50 per cent of all blindness and sight problems in the UK.
Imagine that your eye is like a camera. There is a lens and an opening at the front that focuses objects onto the retina at the back of your eye. The macula lies in the centre of the retina, which is sensitive to light.
Sometimes the cells of the macula become damaged and you lose the ability to appreciate colours or focus on detailed activities like reading. The condition rarely causes total blindness but can blur your central vision and sometimes make you sensitive to light.
It normally affects those over 60 years old, earning the name age related macular degeneration (ARMD), but a genetic form of the condition can also affect children and young people.
Doctors do not know exactly why the cells of the macular start to fail. One theory is that ARMD is triggered by free-radicals, harmful chemicals that your body picks up from sunlight, the atmosphere and cigarette smoke.
But there are some steps you can take to protect your eyes for the future. Follow our guide to eating your way to better eyesight.
Eat your greens
A recent study by the Florida International University found that eyes containing higher amounts of a nutrient called lutein were up to 80 per cent less likely to be suffering from ARMD.
Lutein protects the eye by forming pigments in the macula. The pigments help with vision by filtering out harmful blue light wavelengths that can damage the eye. The more pigments your eye contains, the less likely it is to fall prey to ARMD.
The Eyecare Trust, a national charity devoted to raising awareness of eye health, says, ‘There is increasing evidence to show that eating vegetables containing lutein is crucial to maintaining pigment density levels in the macula.’ Unfortunately lutein is not generated naturally by the body so you need to make sure you are getting enough from other sources.
These are mainly green leafy vegetables like spinach, broccoli and kale. A study in the American Journal of Clinical Nutrition found that eating a teaspoon of green leafy veggies with a small amount of fat raised blood lutein levels by nearly 90 per cent.
You need to eat lutein-rich vegetables for several months before seeing any benefits. But if you get bored of eating spinach, you can take a vitamin supplement to boost your lutein levels. These are available from all major health food stores.
A study published in Investigative Ophthalmology and Visual Science discovered that volunteers taking 10 mg of natural lutein supplements every day for 12 weeks significantly increased the amount of macular pigment in their eyes.
Start crunching on carrots
It is true – eating carrots can help you see in the dark. The essential nutrient responsible is carotene which is turned into vitamin A by the liver.
Vitamin A protects the eyes by helping to absorb the light energy that passes into the eye. Increased levels of vitamin A means
your eyes can absorb more energy and become more sensitive in dim light, helping you see more effectively.Karen Sparrow, spokeswoman for opticians Vision Express, says, ‘Children that are deficient in vitamin A often have dry eyes and in extreme cases can suffer from night ‘blindness’ where they have trouble seeing in the dark.’
Good sources of carotene are carrots, mangoes and cabbage. You can also find it in cod liver oil, milk and eggs.
Another fruit famed for its ability to boost night vision is blueberries. Anecdotal evidence from RAF pilots in World War Two shows they felt their night vision improved after eating blueberries.
The ‘magic’ ingredient in blueberries is a group of compounds called anthocyanosides. These attach to the area of the retina that is responsible for adjusting the eye to see in the dark.
You will need to eat blueberries for more than two months before starting to notice any effects. If they are difficult to get hold of, you can take them in capsule form or tablets, available from good health food shops. Aim to take up to 600 mg every day.
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Brain Boosters: Foods That Can Help Improve Your Intelligence, Alertness, Focus, And Memory
When it comes to your brain, there’s always room for improvement. One can never be too smart, too witty, nor full of too many useless facts. Still, all the effort needed to acquire such abilities is rather tiring. If only we could eat a food that would instantly transform us into geniuses. Well, until scientists develop this magic cuisine, here are a few foods that may help out a bit with your brain’s strength.
No one ever started their day wishing that they were less smart. Colleges make billions by promising hopeful 18-year-olds that four years at their institutions will make them more intelligent than the rest of the population. Little do they know that similar results could be achieved by simply consuming…dark chocolate? In a study conducted by Northumbria University in England, students performed better on simple math tests after drinking shakes chock full of cocoa, Fox News reported. It’s not that dark chocolate makes you “smarter” but it does help the knowledge you already have shine through a bit better. The flavonol in dark chocolate boosts the circulatory system, increasing the amount of blood that reaches your brain, according to Fox News. This ultimately increases brain functions which would explain why test scores can improve after a quick chocolaty snack.
When you’re feeling sluggish, you may be tempted to grab a coffee or candy bar for a quick pick me up. Although these foods will give you an instant energy boost, it’s often short lived and the later crash can leave you worse off. Vitamin E filled almonds may offer a more effective alternative. These are the most nutrient filled nuts, according to a 2010 study,Business Insider reported. The vitamin E and magnesium in almonds will keep your brain at top-working capacity without the aforementioned “crash” afterwards. If nuts aren’t your thing, there’s nothing quite like gold old fashioned protein to give your brain a much needed boost to get you through the day. Protein is able to stimulate orexin neurons, the cells in your brain responsible for keeping you awake. All animal by products such as fish, meats, dairy, and eggs are packed with protein.
It happens to the best of us. You get halfway through a perfectly fine work day when suddenly you find you can’t seem to focus on anything for longer than a few minutes. Maybe next time you should put down the coffee and try reaching for a berry snack instead. Studies have shown that blueberries in particular are able to increase “concentration and memory” for up to five hours. This is due to the large amount of antioxidants they contain. These powerful nutrients are able to stimulate the blood of blood and oxygen to your brain which results in sharper focus, no caffeine needed. The fact that they are able to fight cancer as well doesn’t hurt either.
Who doesn’t want better memory? Studies suggest that eating cold water fatty fish, such as salmon not only helps you to improve memory retention, but can also protect you for degenerative mental disease such as dementia. That is because they contain high levels of essential fatty acids called DHA. According to the BBC, tomatoes can help protect memory loss due to free radical damage to cells, you know just in case you needed a reason to have that second serving of pasta.
Posted by Erin Peck – Healthy eating! #Weightloss
You’ve heard the argument for getting your 5-7 servings of fruits and vegetables a day, but maybe you need another reason to choose an apple over a Snickers bar and steamed veggies over buttered bread. In addition to weight loss, clearer skin, and a better feeling body, fruits and vegetables contain natural antioxidants that fight aging. The free radical theory of aging states that we age because our cells accumulate free radical damage from exposure to smoking, air pollutants, the sun, and chemicals. To fight premature aging of the cells you can eat foods high in antioxidants that counteract and fight free radicals.
Next time you go shopping toss these antioxidant rich foods in your basket and eat to good health!
This tree-like veggie is known in the health community for providing the most concentrated source of vitamin C, a premier antioxidant nutrient. Vitamin C provides support of the body’s oxygen metabolism and lowers the risk of chronic inflammation and cancer risk. If that wasn’t enough, broccoli contains several carotenoids, which function as key antioxidants.
You may skip over these fruits, but apricots pack a powerful punch of antioxidants including carotenoids and vitamin A, which is needed for cell growth and immune system function. This fruit is also good for your vision, full of potassium, and contains a healthy serving of fiber.
These fruits may already be your favorite topping for yogurt and granola or a sweet treat after dinner, but these small berries provide the body with specific antioxidants that can’t be found in any other food. In addition to high levels of vitamin C and anthocanines, raspberries contain ellagitannins, which make up 50 percent of a raspberries antioxidant effect.
This tiny fruit is packed full of queritrin and ellagic acid, which fight off the body’s cancerous cells to prevent cancer from developing. Try to eat an organic version of this fruit or drink cherry juice for your daily dose of these cancer-fighting antioxidants.
Contrary to the popular belief that this water-packed summer treat is made up of only water and sugar, watermelon is actually a nutrient dense food that is full of antioxidants. This melon is full of vitamin C and lycopene, which is associated with a decreased risk of prostate cancer.
This yummy vegetable contains some of the most powerful, polyphenol antioxidants including quercetin, which fights against cancer and heart disease, rutin which is anti inflammatory and anti-allergenic, and anthocyanins that help with urinary tract health, memory function, and graceful aging.
Probably one of the most commonly known antioxidant rich foods, these berries do pack a powerful punch of health, especially considering their small size. One cup of natural, wild blueberries contains more antioxidant capacity than 20 other fruits and vegetables. For blueberries their antioxidant power comes from the blue pigment in the berries, which protects against inflammation, Alzheimer’s disease, and other degenerative diseases.
This leafy green is already loved for its high levels of fiber, potassium, and multiple vitamins. In addition to being full of healthy goodness, spinach is full of the carotenoids luten and zeaxanthin, which protect the eyes from damage, fight against cataracts, and age-related macular degeneration.
9. Kidney Beans
You may already love beans as a source of protein, fiber, and nutrients, but kidney beans are also exceptionally rich in flavonoids, a class of antioxidants that helps fight aging and the presence of free radicals in the body.
You may already know that oranges are high in vitamin C, but this particular vitamin is the primary water-soluble antioxidant in the body. It works to prevent damage inside and outside the cells to prevent colon cancer. In addition it can reduce the severity of inflammatory conditions like asthma, osteoarthritis, and rheumatoid arthritis.
gPosted by Crisha Alyziah Miller -When you have iron-deficiency, your cells can’t get enough oxygen. How can you tell if your levels are a little low? Be on the lookout for these 10 warning signs.
Iron is crucial to biologic functions, including respiration, energy production, DNA synthesis, and cell proliferation. Although the prevalence of iron-deficiency anemia has declined somewhat recently, iron deficiency continues to be the top-ranking cause of anemia worldwide.
The human body has evolved to conserve iron in several ways, including the recycling of iron after the breakdown of red cells and the retention of iron in the absence of an excretion mechanism.
However, since excess levels of iron can be toxic, its absorption is limited to 1 to 2 mg daily, and most of the iron in the body (about 25 mg per day) is recycled by macrophages that phagocytose senescent erythrocytes. The latter two mechanisms are controlled by the hormone hepcidin, which maintains total-body iron within normal range, avoiding both iron deficiency and excess.
Hepcidin is a peptide hormone that is synthesized primarily in the liver. It functions as an acute-phase reactant that adjusts fluctuations in plasma iron levels by binding to and inducing the degradation of ferroportin, which exports iron from cells. In iron deficiency, the transcription of hepcidin is suppressed. This adaptive mechanism facilitates the absorption of iron and the release of iron from body stores.
In most cases, iron resistance is due to disorders of the gastrointestinal tract. Partial or total gastrectomy or any surgical procedure that bypasses the duodenum can cause resistance to oral iron. Laparoscopic Roux-en-Y gastric bypass, which is performed in selected obese patients to reduce caloric intake and to correct diabetes, is an emerging cause of iron deficiency and anemia because the procedure effectively removes an active iron absorption site from the digestive process and increases gastric pH. Helicobacter pylori infection decreases iron absorption because the microorganism competes with its human host for available iron, reduces the bioavailability of vitamin C, and may lead to microerosions that cause bleeding. Since it is estimated that half the world’s population is infected with H. pylori, clinicians should be aware of the possibility of infection and provide treatment in order to eradicate this source of iron-resistant iron-deficiency anemia.
Patients with malabsorption and genetic iron-refractory iron-deficiency anemia may require intravenous iron. Intravenous administration is also preferred when a rapid increase in hemoglobin level is required or when iron-deficiency anemia caused by chronic blood loss cannot be controlled with the use of oral iron, as is the case in patients with hereditary hemorrhagic telangiectasia. Active inflammatory bowel disease is an emerging indication for the use of intravenous iron; oral iron is not only ineffective but may also increase local inflammation. Intravenous iron is essential in the management of anemia in patients with chronic kidney disease who are receiving dialysis and treatment with erythropoiesis-stimulating agents.